Nut-lock.



PATENTED SEPT. 8, 1908.

A. W. DAWES.

NUT LOCK. APPLICATION FILED SEPT. 16, 1907.

I avwemtoz AIN. DAWES wwweooeo 66.

hold; and

v screwed off the bolt.

. tion, combination as will be more fully and particularly pointed outin the appended ALBERT W. DAWES, OF NEW HOPE, CALIFORNIA.

NUT-LOCK.

7 Specification of Letters Patent.

Patented Sept. 8, 1908.

Application filed September 16, 1907. Serial No. 393,080.

T 0 all whom it may concern: 7

- Be it known that I, ALBERT W. Dawns, a citizen of the United States,residing at New Hope, in the county of San Joa uin and State ofCalifornia, have invente certain new and useful Improvements in Nut-Locks and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart, to which it appcrtains to make and use the same. r

This invention relatesto improvements in nut locks.

The object of the invention is to provide a simple and efficient nutlock which may be readily applied to a bolt and nut to securely preventthe latter fror'n becoming loose.

Afurther object is to provide a nut lock which may nut when desired, topermit the same to be With these objects in view, the invention consistsof certain novel features of construcand arrangement of parts describedhereinafter claims. I

In the accompanying drawing, Figure 1 is a perspective view of the lock,showing the application of the same; Fig. 2' is a vertical sectionalview of the lock as shown in Fig. 1 Fig. 3 a perspective view of thelock before being apphed to a bolt and nut; and Fi 4 is a plan view ofthe reverse side of the lock.

As shown in the accompanying drawing, the lock, 1, is formed from asingle oblong piece of malleable metal, on one. end of which is formed abolt-engaging )ortion, 2, having formed therein a centrally disposedbolthole, 3. On the reverse side of the bolt-engaging portion, 2 whichis thickened to provide additional strength, is formed a checkered orserrated surface, 4, which projects a slight distance beyond the malnportion of the lock, said checkered or serrated surface being adaptedtoform a firm engagement with the articleto which the bolt is applied,thus preyenting the turning of the lock when the nut s being screwed upon the bolt.

()n the opposite end of the lock is formed a nut-en aging portion, 5, inwhich is formed an angu ar opening, 6, ada ted to be engaged'with thenut when t e litter is screwed up to proper position on t e bolt. Theboltbe readily disengaged from the engaging portion, 2, and thenut-engaging portion, 5, are connected by an integrally formed slightlyattenuated neck, 7, which is adapted to be bent or folded over uponitself when the portion, 5, is engaged with the nut. This neck is ofapproximately the same Width as the end portions to prevent twisting orbreaking thereof when turning pressure is applied to thenut.

In app ying the lock the portion, 2, is engaged with the projecting endof the bolt, after which the nut is applied theretoand screwed up onsaid end into firm engagement with the serrated portion, 4,.against theside o the object to which the bolt is applied. After the nut has thusbeen screwed up in place, the neck, 7, isbent over in position to engagethe apertured .portion, 6, with the nut, thus securely holding the sameagainst movement'lin any direction. Should it be desired at any time toremove the nut from the bolt, the portion 5 is simply bent back out ofengagement with the nut, when the same may be readily unscrewed in theusual manner.

A nut lock constructed as herein shown and described will besimple andinexpensive in construction, reliable in use and may be quickly appliedto a bolt and nut without the use of a specially constructed tool.

Havin thus fully described my invention, what I cFaim as new and desireto secure by Letters-Patent, is:

A nut lock comprising an oblong body of pliable but non-resilientmaterial whose ends are substantially round and are'connected by aslightly attenuated neck, both of said ends being of the same area andadapted to mate when folded, one of said ends being thickened androughened on its under surface and provided with a central hole toreceive a bolt, the opposite end being of equal thickness with the neckand being provided with a centrally disposed squared openin said lastnamed end being folded over para portion, 2, thus tightly bindin the"lel with the first named end to engage the;

nut.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witncsses.

ALBERT W. DAWES.

